diff --git a/litex/compat/soc_sdram.py b/litex/compat/soc_sdram.py
index 16ac21dad..3f020ea18 100644
--- a/litex/compat/soc_sdram.py
+++ b/litex/compat/soc_sdram.py
@@ -58,7 +58,7 @@ def soc_sdram_args(parser):
 
 def soc_sdram_argdict(args):
     r = soc_core_argdict(args)
-    for a in inspect.getargspec(SoCSDRAM.__init__).args:
+    for a in inspect.getfullargspec(SoCSDRAM.__init__).args:
         if a not in ["self", "platform", "clk_freq"]:
             arg = getattr(args, a, None)
             if arg is not None:
diff --git a/litex/soc/integration/soc_core.py b/litex/soc/integration/soc_core.py
index 03a233e1c..13565f600 100644
--- a/litex/soc/integration/soc_core.py
+++ b/litex/soc/integration/soc_core.py
@@ -337,7 +337,7 @@ def soc_core_args(parser):
 
 def soc_core_argdict(args):
     r = dict()
-    for a in inspect.getargspec(SoCCore.__init__).args:
+    for a in inspect.getfullargspec(SoCCore.__init__).args:
         if a not in ["self", "platform"]:
             if a in ["with_uart", "with_timer", "with_ctrl"]:
                 arg = not getattr(args, a.replace("with", "no"), True)